Insulator.



PATBNTED FEB. 21, 1905.

E. G. WRIGHT.

INSULATOR. APPLIOATION FILED MAR. 18, 1904.

INVENTOI? Evans 6? Mfy/l t.

ATTORNEYS UNITED STATES EVANS O. TVRIGHT, OF PORTLAND, OREGON, ASSIGNOROF ONE-HALF TO Patented February 9 05 PATENT OEEIcE.

FRANCIS J. MOHENRY, OF PORTLAND, OREGON.

INSULATOR.

SPECIFICATION forming part of Letters Patent No. 783,348, dated February21, 1905.

Application filed March 18,1904. Serial No. 198,714.

To ail whmn it Wuty concern.-

Be it known that I, EvANs O. \VEIGHT, residing at Portland, in thecounty of Multnomah and State of Oregon,have invented certain new anduseful Improvements in Insulators, of which the following is aspecification.

My invention relates to the class of insulators which are so formed asto avoid the ne cessity of tie-wires to hold the main wire in positionthereon, and it seeks to providea device of this character in which thewire will be tightly held and to which the wire may be rapidly securedand with a minimum amount of trouble.

Again my invention seeks to provide an insulator of this character whichwill be simple and durable in construction and which will readily serveits intended purposes.

With other objects in view, which will be hereinafter fully apparent,the invention consists in certain novel construction of insula tors,such as will be first described in detail, and then specifically pointedout in the appended claims, reference being had to the accompanyingdrawings, in Which- Figure 1 is a perspective view of my invention asapplied for use in holding wires thereon in one direction. Fig. 2 is asimilar view showing the wires wound on the insulator in a slightlydifferent manner. Fig. 3 is a similar view showing the insulator used atthe corner, the wires being wound substantially as shown in Fig. 2. Fig.l is a side elevation of the insulator. Fig. 5 is a front elevationthereof. Fig. 6 is a side elevation of the side opposite that shown inFig. 4. Fig. 7 is a horizontal section on the line 7 7 of Fig. 4:. Fig.8 is a rear elevation of the insulator.

.In the drawings, in which like characters of reference indicate likepartsin all the figures, 1 designates the insulator, which has an axialbore 1 to receive the securing-screw 2 to hold the same in position.(See Fig. 1.) Near the upper face 1 the insulator has a transversehorizontal bore 1, which is located in the rear of the vertical bore 1,through which the line-wire w passes.

3 designates a groove extending from the end 10 of the bore .1 on oneside face, passing downward toward the front part of the insulator andthen across the front of the insulator, as at 3, to the opposite side.The groove portion 3 then extends upward, as at 3", and merges with agroove portion 3 across the top face 1, the groove 3 merging with asecond side groove 3, extending from the rear to the front of theinsulator and which also merges with the groove 3 and bore 1 at theirjuncture. By forming the insulator with the grooves 3, 3, 3, and 3 aknob 1 will be provided, as shown.

In the practical application of my invention the wire on is passedthrough the bore 1" from right to left and then brought down into thegroove 8, up in the groove 3 and across in the groove 3, from which whenthe wire is to continue in the same direction it is passed onward, asshown in Fig. 1. Again the wire may be arranged substantially as shownin Fig. 2, where the wire is threaded from right to left through thebore 1 and then passes into the grooves 23 3 '3 respectively, and fromthence onward in the same linear direction. It should be understood toextend the wires at right angles it is only necessary to turn the wirein the manner indicated in full lines in Fig. 3 or as shown in dottedlines in Fig. 1.

From the foregoing description, taken in connection with theaccompanying drawings, it will be seen that 1 provide a very simple insulator capable of receiving the wire in several different positions andwhich is so constructed that when the wire is wound thereon the samewill be tightly held from movement by its own tension and without theuse of binder-wires.

In practice my improved insulator may be constructed of glass,porcelain, or any other suitable substance.

From the foregoing it is thought the complete construction, operation,and advantages of my invention will be readily apparent to those skilledin the art to which it appertains, and I desire it understood thatslight changes in the detail construction of my improvement may be madewithout departing from the scope of the invention and the appendedclaims.

Having thus described my invention, what I claim, and desire to obtainby Letters Patent, is

1. An insulator having a longitudinal bore, and a transverse bore at oneside of the longitudinal bore, said insulator having a groove commencingat one side of the transverse bore and extending downwardly and aroundto the front of the insulator, then upwardly toward the top of theinsulator, then transversely toward the other side of the insulator,then downwardly and rearwardly and intersecting the transverse bore atthe commencement of said groove substantially as shown and described.

2. An insulator consisting of a cylindrical body having a longitudinalaxial bore 1 running its entire length and a transverse bore 1 disposedto the rear of the axial bore, said insulator having a surface groovecommencing at one extremity of the transverse bore and passingdownwardly as at 3 and around to the opposite side of the insulator asat 3, then upwardly toward the top as at 3" and then transversely acrossthe top of the insulator as at 3, then downwardly and rearwardly as at 3and merging with the transverse here at the point where the groovecommenced, said groove forming a knob 4: and adapted to receive theline-wire substantially as shown and described.

3. An insulatorconsisting of a cylindrical body having a longitudinalaxial bore 1 running its entire length and a transverse bore 1 disposedto the rear of the axial bore, said insulator having a surface groovecommencing at one extremity of the transverse bore and

